Rifamycins

Medication

Common Uses

Some Potential Side Effects

Rifampin

Rifabutin

Rifapentine

Tuberculosis and infections related to tuberculosis

For rifampin: Leprosy

Rash

Liver dysfunction

Gastrointestinal upset

Red-orange discoloration of saliva, sweat, tears, and urine and of soft contact lenses

Interactions with many medications, often requiring changes in the dose

Rifaximin

Traveler’s diarrhea

Nausea, vomiting, abdominal pain, and flatulence

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